Seat support



FIG. 1 shows an isometric view of the seat support design;

FIG. 2 shows a top view of the seat support design;

FIG. 3 shows a rear view of the seat support design;

FIG. 4 shows a front view of the seat support design;

FIG. 5 shows a side view of the seat support design;

FIG. 6 shows the opposing side view to that in FIG. 5 of the seat support design; and,

FIG. 7 shows a bottom view of the seat support design.

In the drawings, the broken lines represent environmental structure forming no part of the claim. 

The ornamental design for a seat support, as shown and described. 